#include <stdio.h>
int main()
{   
    /*int a = 10;
    const int*const p=&a;
    //int * q = &a;
    *p=20;
    printf("a = %d\n", a);
    a = 30;
    printf("a = %d\n", a);
    //*p = 30;  //这么写就是错的*/
    int a[]={1,2,3};
    int *p=a+1;
    printf("%d",*p++);
    return 0;
}